Daemon not staying up

[cseufert]

I have built a docker container around this, to try and then copy it into our application container, however, I can't get the process to stay running:

Dockerfile

# syntax=docker/dockerfile:1

FROM golang:1.17-buster
WORKDIR /app
COPY *.go makefile ./
COPY net ./net
COPY command ./command
COPY x509 ./x509

RUN go mod init github.com/pbergman/graylog-proxy && \
    go mod tidy && \
    go build -o /usr/sbin/graylog-proxy main.go && \
    strip /usr/sbin/graylog-proxy

CMD [ "/usr/sbin/graylog-proxy" ]

Then build and run the container:

I get the following output:

docker run -it --rm proxy-test graylog-proxy listen -vvv --no-client-auth udp://127.0.0.1:12201 udp://127.0.0.2:1234
[2021-12-12 22:51:02.154612] listen.DEBUG: starting forward udp://127.0.0.1:12201 → udp://127.0.0.2:1234
$ 

I can't figure out why it's stopping immediately, the return code is 4, and its immediate.

running with time cmd:

real	0m0.537s
user	0m0.018s
sys	0m0.019s